Risks Deter but Pleasures Allure: Is Pleasure More Important?
Li-Wei Chao, Helena Szrek, Rui Leite, Karl Peltzer, Shandir Ramlagan
Judgment And Decision Making, vol. 10, 2015, p. 204-218.

A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises
Li-Wei Chao, Helena Szrek, Karl Peltzer, Shandir Ramlagan, Peter Fleming, Rui Leite, Jesswill Magerman, Godfrey B. Ngwenya, Nuno Sousa Pereira, Jere Behrman
Journal of Development Economics, vol. 98, 2012, p. 94-107.

Predicting (Un)healthy Behavior: A Comparison of Risk-Taking Propensity Measures
Helena Szrek, Li-Wei Chao, Shandir Ramlagan, Karl Peltzer
Judgment And Decision Making, vol. 7, 2012, p. 716-727.